Authors
Joanna Szumigaj-Tarnowska
Research Institute of Horticulture, Skierniewice, Poland
Piotr Szafranek
Agency for Restructuring and Modernisation of Agriculture, Warsaw, Poland
Zbigniew Uliński
Research Institute of Horticulture, Skierniewice, Poland
Czesław Ślusarski
Research Institute of Horticulture, Skierniewice, Poland